The 2011 British 125 Championship season was the 24th British 125cc Championship season. A support category for the British Superbike Championship, the 125cc category was the only two-stroke class left in the British Superbike Championship.
| 2011 Calendar [1] | ||||||
|---|---|---|---|---|---|---|
| Round | Circuit | Date | Pole position | Fastest lap | Winning rider | Winning team |
| 1 | | 25 April | | | | Banks Racing Team |
| 2 | | 2 May | | | | SP125/Brookhouse Garage Racing |
| 3 | | 15 May | | | | SP125/Brookhouse Garage Racing |
| 4 | | 30 May | | | | SP125/Brookhouse Garage Racing |
| 5 | | 19 June | | | | R S Racing |
| 6 | | 3 July | | | | KRP/Racing Steps Foundation |
| 7 | | 17 July | | | | KRP |
| 8 | | 7 August | | | | R S Racing |
| 9 | | 29 August | | | | R S Racing |
| 10 | | 11 September | | | | R S Racing |
| 11 | | 25 September | | | | R S Racing |
| 12 | | 9 October | | | | KRP/Racing Steps Foundation |
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